Water-cooled interior agitator for internal-combustion engines



June 12. 1928. 1,673,776

A. MOORE WATER COOLED INTERIOR AGITATOR FOR INTERNAL COMBUSTION ENGINES Filed Jan. 28, 1927 Q Ma INVENTOR' V Z- ATTORNEY Fatented June 12, 1928.

Mrs!) STATES PATENT OFFICE.

ARLINGTON MOORE, OF NEW YORK, N. Y2, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MAXMOOB CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

WATER-COOLED INTERIOR AGITATOR FOB- INTERNAL-COMBUSTION ENGINES.

Application filed January 28, 1927. Serial No. 164,350.

My invention relates to internal combustion engines, and particularly to a water cooled interior agitator for internal combustion engines.-

One of the objects of the invention consists in the subdivision of the cylinder head into parts, and providing one of these parts with inwardly extending agitating means.

Another object consists in the provision of means for obtaining eificient cooling of the agitating means. Other objects will appear in connection with the following description of an embodiment of my invention.

In my application Serial No. 159,838, filed January 8, 1927, I'described and claimed interior agitator members forming part of a relatively thin metallic plate member interposed between the cylinder block and the removable cylinder head of an internal combustion engine. a

In the present case, an interposed member is made use of as before for supporting the agitating means, but this time said interposed member is made relatively thick and preferably consists of a substantially fiat casting, which is recessed in its interior for circulation of cooling fluid, and the interior agitating means projectin therefrom and supported thereby are simi arly recessed and cooled for at least a portion of their length.-

This additional recessed casting substantially takes the place of that part of the removable cylinder head containing the sidewalls of the combustion chamber, substantially the ceiling Wall only of the combustion chamber being formed in the cylinder head itself. y

In the accompanying drawings showing an embodiment of the invention in an L head, four-cycle internal combustion engine for consuming volatile liquid fuel, Fig. '1 is a vertical sectional view of such an internal combustion engine equipped with agitator means in accordance with my invention, the section being taken on line 11, Fig. 2, and Fig. 2 is a plan view with the cylinder head removed.

The engine shown for purposes of illustration is of the L-head type, and comprises the cylinder block 1O containing cylinder bores 12, pistons 14, combustion chamber 16,

spark plug 22.

- A casting 24 is interposed between the c linder head 26 and the cylinder block 10. hls casting is made comparatively thick in order that it may be cored out as indicated at 28'for circulation of cooling water.

With the provision of the thick plate 24 there is, of course, a duplication of the usual head gasket, as indicated at 30, 32.

The plate-24 is provided with bolt holes and water passages like the gaskets, so that it may be bolted in place, and the cooling water may circulate freely through the'connected recesses in the cyllnder block 10, the cylinder head 26 and the interposed cast plate member 24.

The combustion chamber space consists largely of the openings 34provided. in the plate 24, so that the plate 24 provides all or the larger part of the sidewall surfaces of the combustion chamber, and the under side of the cylinder head 26 constitutes the ceiling wall 36 of the combustion chamber, though cylinder head 26 may be recessed to some extent, as at 38, to provide a part of the combustion chamber space.

lVhile several agitator vanes or blades may be provided, one big vane is preferably used in order to facilitate coring out a recess therein for the cooling water. In the form shown, a single large vane 40 is illustrated. Said vane 40 projects laterally into the space over the cylinder bore 12, and preferably to about the middle thereof, and has inclined front and back walls'42, 44, and the cored out recess 46 in communication with the engine Water; jackets. The

cooling water recess 46 preferably extendsao only part way outto the extreme end portion 48 of the vane 40, so that this part 48 substantially opposite the vane 40, as indi ice cated at 50. The overhanging portion 50 is preferably substantially arcuate in form and leaves only a slight clearance over the piston head when the piston is at top center position.

With such arrangement, the ejection of rat the spark at high and low speeds respectively, the fixed ignition timing may advantageously be used,.i f desired.

The spark plug 22 is preferably located in the opening 23 over the intake-valve 20 and adjacent to the vane 40, so that the agitational movement produced by vane 40 is substantially a maximum at the point where the gases are ignited.

The arrangement shown and described is well'adapted for producing efiicient scavenging action, as the exhaust gases are directed over the intake valve and pass freely to their outlet through the exhaust gas valve port.

The vane 40 and plate extension are well adapted to break up pressure waves produced during combustion and to therey prevent or reduce detonation.

With the walls of the combustionchamber formed in three parts, namely one part' in the cylinder block 10, another part in the cylinder head 26, and still another part in the interposed plate member 24, each part has its ownrate of yielding slightly to the forces productive of detonation and of recovery therefrom, so that vibrational effects produced inthe combustion chamber under conditions productive of detonationare subdivided and dampened as compared with the usual construction with the ordinary twopart combustion chamber.

It will be seen that substantially any desired clearance space and compression ratio can be obtained with the construction shown, by variation in the thickness of the member 24,- and that where a high compression ratio is desired, and it is not practical to further reduce the thickness of member. 24 because of valve clearances and the like, a ver considerable reduction can be obtained 1n the volume of the combustion chamber by male ing the water-cooled vane 40, as well as the water-cooled overhanging at 50, of generous till size. By providing the vanes in a separate plate the casting of the vanes is simplified, and the member containing the vanes can be readily removed to give access to the pistons. A thick vane, such as shown, is, of course, very stiif and strong and highly resistant to any tendency toward vibration.

It will be understand that the illustrated embodiment of the invention is for the pur pose of affording an understanding of the invention and not for limitation thereof and the scope of the invention is defined in my claims.

The subject matter of the invention disclosed herein but not claimed is disclosed and claimed in part in my copending application Serial No. 155,919, filed December 20, 1926, and in part of my copending application Serial No. 159,838, filed January 8, 1927.

I claim r p 1. An internal combustion engine comprising a hollow member communicating with the water-containing spaces of the engine and extending over the cylinder bore; said member being transversely inclined and serving to impart a cyclomc agitational movement to the fuel charges 2. In an internal combustion engine, a

cylinder .block, a cylinder head, a. hollow member interposed therebetween communi- I eating with the water-containing spaces of the engine, and a hollow projection communicating with said member and extending inwardly therefromfor agitating the fuel charge. 7

3. In an internal combustion engine, a cylinder block, an apertured water-cooled member there'on having themajor part of.

the combustion chamber spaces formed therein, a part of the inner edge portion of said member projecting inwardly over the edge of the cylinder bore for a portion of the circumference thereof into the spaceover the cylinder bore, and a cylinder head on said member.

4. In an internal combustion engine, a

cylinder block, a cylinder head, and an in terposed relatively thick plate having a combustion chamber space therein and a part of the edge portion thereof projecting into the space over the cylinder bore along a portion of the edge thereof.

5. In a water-cooled internal combustion engine, a cylinder block and a cylinder head and a member interposed therebetween, all,

having recesses for circulation of cooling water, said member having water-cooled in-' 'municating recesses for cooling fiuid,'an

agitator vane with inclined sides extending inwardly from the interposed member to about the middle of the cylinder bore, a cooling fluid recess provided in the vane and in communication withthe cooling fluid recess in. said member, andthe extreme end part of saidvane being substantially solid and-adaptedto absorb heat during combustion and to give up heat to the incoming gases of the succeeding cycle.

7. In an internal combustion engine, a cylinder havin a combustion chamber at the end thereo a piston therein; a part of the wall portion of said combustion chamber projecting over a part of the edge of said cylinder in close relation, thereto, and constricting the mouth of the cylinder bore to provide an eccentric opening between the same and the combustion chamber contiguous to the remaining part of the edge of said cylinder, and a projecting portion on the part of the wall of said combustion chamber opposite said first named part thereof lying in the path of the fuel charge passing through said constricted opening for controlling the condition of the charge upon the actuatlon of the piston.

8. In an internal combustion engine,- a cylinder having a combustion chamber at the end thereof extending laterally thereof, a piston in said cylinder, intake and exhaust valves in the laterally extending portion of said combustion chamber; a part of the wall of said combustion chamber projecting over the part of the edge of said cylinder .remote from said valves in close relation to said cylinder edge and constricting the mouth of the bore thereof to provide an cecentric opening between the same and said combustion chamber at the side thereof adjacent to said valves, and a projecting portion on the wall of said combustion cham-.

bustion chamber; a part of the wall portion of said combustion chamber projecting'over the part'of the edge of said cylinder remote from said valves in close relation to said cylinder edge, and constricting the mouth thereof to provide an eccentric opening between the bore thereof and said combustion chamber at the side thereof adjacent to said valves, and means on the walls of saidcombustion chamber towards said valves adjacent to said opening cooperating with said piston and the projecting part of said combustion chamber for producing an agitational movement of the fuel charge.

10. In an internal combustion engine, a cylinder having a combustion chamber at t eend thereof; a art of the wall portion of said combustion c amber projecting over a part of the edge of said cylinder in close relation thereto and providing an eccentric opening ad acent to the remaining part of the edge of said cylinder between the bore thereof and said combustion chamber, and an agitator vane in the combustion chamber extending transversely of said eccentric opening.

I 11. In an internal combustion engine, a cylinder having a combustion chamber at the end thereof; a part of the Wall portion of said combustion chamber projecting over a part of the edge of said cylinder in close relation thereto and providing an eccentric opening contiguous to the remaining part of the edge of said cylinder between the bore thereof and said combustion chamber, intake and exhaust valves in said combustion chamber, and an inclined member projecting from the wall of said combustion chamber intermediate said valves and said opening.

12. In an internal combustion engine, a cylinder having a combustion chamber at t 1e end thereof extending laterally thereof; a part of the wall portion of said combustion chamber projecting over the part of the edge of said cylinder remote from the laterally extending portion of said combustion chamber in close relation to said edge, and providing an eccentric opening between the bore of said cylinder and said combustion chamber towards the laterally extending part thereof, intake and exhaust valves in the laterally extending part of said combustion chamber, and an inclined vane extending from the Wall of said combustion chamber and over said eccentric opening, and disposed between the projecting wall portion of said combustion chamber and said valves. 13. In an internal combustion engine, a cylinder block, a relatively flat cylinder head, and a relatively flat member interposed therebetween having an opening therein alined with the cylinder bore and extending laterally beyond the same, and forming with'said cylinder head a combustion chamber; said parts having recesses for the circulation of water therein; and said member having a portion thereofprojccting over the part of the edge of the cylinder bore remote from the laterally extending portion of the combustion chamber to provide an eccentric opening between said cylinderbore and said combustion chamber towards the laterally extendin portion thereof, intake and exhaust vaIves in the laterally extending portion of said combustion chamber, and an inclined hollow vane projecting from said member and over said eccentric opening intermediate the projecting portion of said III member and said valves, and communicating and extending dver the cylinder bore; the ter thereof; the extreme end part of said 10 end portion of said member having thicker vane being substantially solid and adapted walls than the base portion thereof. to absorb heat during combustion and to ,15, In an internal combustion engine, a give up heat to the incoming gases of the relatively large inclined hollow vane withsucceeding cycle.-

in the combustion chamber communicating In testimony whereof, I have signed my 15 with the water-containing spaces of the enname hereto.-

gine, and extending 'from adjacent to the edge of the cylinder bore towards the cen- ARLINGTON MOQRE. 

